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Finding the Fourth Proportional to 40,959.62, 61,454.22 and 14,309.54

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Solution

The fourth proportional to 40,959.62, 61,454.22 and 14,309.54 is: 21,469.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,959.62 : 61,454.22 = 14,309.54 : x
  2. Step 2: Convert to fraction form
    40,959.62/61,454.22 = 14,309.54/x
  3. Step 3: Cross multiply
    40,959.62x = 61,454.22 × 14,309.54
  4. Step 4: Simplify right side
    40,959.62x = 879,381,808.67
  5. Step 5: Solve for x
    x = 879,381,808.67/40,959.62
  6. Step 6: Final answer
    x = 21,469.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.